Home / 19,145.04-28,688.24-12,881.85

Finding the Fourth Proportional to 19,145.04, 28,688.24 and 12,881.85

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Solution

The fourth proportional to 19,145.04, 28,688.24 and 12,881.85 is: 19,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.04 : 28,688.24 = 12,881.85 : x
  2. Step 2: Convert to fraction form
    19,145.04/28,688.24 = 12,881.85/x
  3. Step 3: Cross multiply
    19,145.04x = 28,688.24 × 12,881.85
  4. Step 4: Simplify right side
    19,145.04x = 369,557,604.44
  5. Step 5: Solve for x
    x = 369,557,604.44/19,145.04
  6. Step 6: Final answer
    x = 19,303.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.